American Journal of Respiratory Cell & Molecular Biology; 2006, Vol. 34 Issue 3, p330-337, 8p, 3 Color Photographs, 1 Black and White Photograph, 5 Charts, 3 Graphs
American Journal of Physiology: Lung Cellular & Molecular Physiology. May2005, Vol. 288, pL887-L893. 7p. 10 Black and White Photographs, 3 Charts, 7 Graphs.